Tank-heater.



J. TRISLER.

TANK-HEATER.

APPLlcATIoN FILED FEB. 1S. 1915.

1,152,671 Patentdsept. 7, 1915.

K JOHN' TRISLER, OF HOHER, XLLINOIS.

TANK-HEATER.

Specification of Letters Patent.

Patented'Sept. 7, 1915.

Application filed February 1S, 1915. Serial No. 9,174.

To all w hom it mag/.concern i Be it known that I, JOHN zen ot theUnited States, residing at'l-lome-r,

in the county of Champaign and State of illinois, have invented certainnew and-use-` iul improvements in Tank-Heaters; and I do declarethefollowing to be a `full, clear, and enact description or' the inventionsuch :is will enable others skilled in the art to which it appertains tomake andusethe same. A

This invention `relates to heating apparatus and more particularly toheatersin which Fluid fuel is used, designed for use in water tanks, andthe object is to prevent freezing of the contents thereof. I

Another object of this invention is to provide a continual circulationof' water around the heater to further prevent any freezing of thecontents of thetank, and a further object of this invention relates tomeans for confiningtheheat in the casing or heat chamber to develop amaximum amount of heat at a minimum expenditure of p.

the chamber 1, the cap 6 of the air inlet 2 is fuel. y

llVith the above and other vobjects in View, the invention consistsofvcertain novel features of construction, combination and arrangementof parts as will be more fully described and claimed.

ln the accompanying drawings-z Figure k1 is a side elevation of thepresentk invention showing its use in connection with a tank; Fig. 2 isa central vertical longitudinal section; Fig. 3 is a vertical transversesection taken on the line 3 8 of Fig. 2; Fig. 4 is a horizontal sectionon the line l--t of Fig. 2; Fig. 5 is a detail section of the air inletflue with the closure 7 partly in section, set therein; Fig. 6 is adetail perspective view of the closure.

ln describing my invention, I` shall refer to the drawing in whichsimilar reference characters designatey corresponding parts throughoutthe several views, and in which 1 is a heatingy chamber comprising anoblong hollow casing with an upright vertical l inlet flue 2 at one end.rlhis flue is circular and is closed at its upper end by'an aperturedhood or cap 6 which is adapted to allow a certain amount of fresh air tobe fed to the fluid burners which are placed in the heating chamber 1.rIhe opposite end of the heating chamber from its inlet iiue, isapertured and a small outlet pipe 5 projects Tristan, a citi-ytherethrough, runningA forward along the top of said chamber to theinlet flue and up the side of thesame, terminating at a point near itstop.

Attached to the top of the inlet of the chamber 1 is an invertedsubstantially L- shaped water circulating hood or conduit B which issubstantially U-shaped in cross section on its horizontal portion andextends from the inlet i'iue 2 past the end of the heat chamber 1. lThelower portion of the hood B projects downwardly and inwardly until itcontacts with the end of the chamber 1 at a point approximately midwaybetween its top and bottom, at which point there is a water inletAopening 12 to allow water in the tank to flow between the heat chamberand the hood. Disposed on one side ot the heat chamber 1 at the point ofcontact of the torward end of the hood B and the tlue 2, is an outletopening 11i to allow the water to flow from the hood for a purposehereinafter to be described.

When it is desired to increase the heat in removed and a closure or stop7 is inserted therein. This closure or stop 7 which is yadapted toslidably engage the inner walls of the flue 2v and close the same, has ahandle 9 on its upper surface and its downward movement is limited bylugs or stops 8 disposed aroundthe inner walls of the iiue 2 -just aboveits entrance into the heat chamber 1. The outer periphery of the closureor stop 7 is notched at 10 to allow a small4 air inlet pipe l whichenters the flue near the top and runs vertically down the same until itterminates in the heat chamber near the bottom thereof.

`The heaterl is spaced from the bottom of the water tank in which it isplaced and adapted to be secured thereto by any preferred means, thoseshown by 3 in the draw- In operation, the uid burners are placed in theheating chamber 1 which soon becomes heated, thereby heating the waterin the tank and causing the same to circulate. The direction of thiscirculation is guided by the hood B over the top and vdown one side ofthe heater which creates a current running up through the inlet 12 andaround across the top of the heating chamber and out the inlet 14. Thiscirculation tends to ings being a simple and effective way ofaccomplishing this purpose.

keep the water continually in motion in the tank and prevents any dangerof the same freezing therein. f

`When it is desired to increase the heat in the chamber l, the closureor stop 7 is placed in the inlet flue 2, thereby forcing the heat in thesame to the rear. rIhe air is then fed into the chamber l by theadditional or auxiliary air pipe 4: which enters the flue 2' a shortdistance below its top and extends downwardly through the side or' thestop or closure 7 into the heating chamber.

From the foregoing, it will be seen that I have provided a very simpleand effective means for carrying out the objects of this invention, thenovelty and utility of which are obvious, and the efficiency anddurability of which is apparent to those skilled in the art. j f

I claim as my invention :-v

l. A tank heater of the class described comprising a heating chamber, avertical air inlet at one end of said heating chamber, an outlet pipe atthe other end, and a hood having a water inlet and outlet covering thetop and part of one end of said -heating chamber to guide thecirculation of water created by the heatingvchamber over the same.

2. A tank heater of the class described comprising `a heating chamber, avertical air inlet at one end and an outlet pipe at the other end,running back to the vertical inlet f 'and upward parallel therewith to apoint" near its top, an inverted substantially L- shaped hood beingU-shaped in cross sectionr along its horizontal portion adapted to coverthe top of the heating chamber and extending past the air outlet endthereof, the downwardly extending portion of said hood projectinginwardv and engaging the end of the heating chamber, said hood having awater inlet at the bottom of the downwardly projecting portion and awater outlet at one side of the forward end of the horizontal portionsubstantially as described.

3. A tank heater of the class described comprising a heating chamber, apair of vertically disposed air inlet pipes of different diameters onedisposed within the other for said heating chamber, the inlet pipe havmga larger diameter adapted to be closed and the inlet pipe having asmaller diameter beingformed with a continual free passage for airtherethrough, and an outlet pipe at the outer end of said heater for theescape of the products of combustion.

4. A tank heater of the class described comprising a heating chamber, avertical air inlet at one end of said heating chamber, lugs onthe innersurface of said air inlet near its lower end, a closure adapted t0 slidewithin said inlet and be held on said lugs, an additional air pipehaving its upper end projecting through the side of the inlet near thetop and adapted to extendi downwardly through the closure into theheating chamber'to form a continualfree passage for air'therethrough, anoutlet pipe at the other end of said heating chamber running back to thevertical inlet and up parallel` therewith to apoint near its top, and ahood having a water inlet and outlet covering the top and part of oneyend of said heating chamber to guide the circulation of water createdby the heating chamber over the same. l

5. A tank heater of the class described comprising an L-shaped heatingchamber, and an inverted substantially L-shaped hood adapted to Contactwith the horizontal portion'and the outer end `of the heating chamber toguide the circulation of water created by the heating chamber over thesame.

6. A tank heater of the'class described comprising an vL-shaped heatingchamber, said chamber having an air inlet at its upper end, an invertedsubstantially L-shaped hood covering'the top of the horizontal portionand part of the outer end of said heating chamber, a water inlet andoutlet for said hood, and an outlet pipe for the hot gases projectingfrom the outer upper end of the heating chamber and extending betweenthe said hood and chamber to the vertical inlet and upward paralleltherewith to a point near its top. f

In testimony whereof I have hereunto set -niy hand in presence of twosubscribing witf nesses.

JOHN TRISLER.

Witnesses:

J. A. SMITHs C. H. W'ALLACE.

Copies of this patent may be obtained for ve cents each, byaddressingthe Commissioner of Patents,

Washington, D. C.

